00585nam a2200229Ia 4500008004100000050001000041050001400051100003200065245001800097245003500115260001500150260001600165260000900181300001600190300002800206300001000234500002800244650003100272650001300303650002800316700001100344170711s9999    xx            000 0 und d  a338.7  bM126 2012  aMcClafferty, Carla Killough  aTech titans /  cby Carla Killough McClafferty.  aNew York :  bScholastic,  c2012  a144 pages :  bcolored illustrations ;  c19cm.  aOne frontier, six bios.  aBiography & Autobiography.  aScience.  aYoung adult nonfiction.  aTitle.